CVE-2021-34618
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedA remote denial of service (DoS) vulnerability was discovered in some Aruba Instant Access Point (IAP) products in version(s): Aruba Instant 6.4.x: 6.4.4.8-4.2.4.18 and below; Aruba Instant 6.5.x: 6.5.4.18 and below; Aruba Instant 8.3.x: 8.3.0.14 and below; Aruba Instant 8.4.x: All versions; Aruba Instant 8.5.x: 8.5.0.11 and below; Aruba Instant 8.6.x: 8.6.0.7 and below; Aruba Instant 8.7.x: 8.7.1.1 and below. Aruba has released patches for Aruba Instant that address this security vulnerability.
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · high confidenceA remote denial of service vulnerability exists in Aruba Instant Access Point (IAP) products across multiple version branches (6.4.x through 8.7.x). An unauthenticated remote attacker can exploit this to cause the affected AP to become unavailable, disrupting wireless network services.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.
NVD · CPE data>= 6.4.0, <= 6.4.4.8-4.2.4.18>= 6.5.0, <= 6.5.4.18>= 8.3.0, <= 8.3.0.14>= 8.4.0, <= 8.5.0.11>= 8.6.0, <= 8.6.0.7>= 8.7.0, <= 8.7.1.1CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Adjacent
- Complexity
- Low
- Privileges
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- None
- Availability
- High
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
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Identify the Aruba Instant AP modelAccess the Aruba Instant WebUI or CLI and locate the device model information, typically shown on the Dashboard or in the Maintenance > System > Summary pageAffected if The device is an Aruba IAP model (such as IAP-200 series, IAP-300 series, or newer Instant APs)
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Retrieve the installed Aruba Instant firmware versionIn the WebUI, go to Maintenance > System > Summary or use the CLI command 'show version' to display the running firmware versionAffected if The displayed version cannot be retrieved or the device is unresponsive due to the DoS condition
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Compare the firmware version against affected rangesCheck if the installed version falls within any of these ranges: 6.4.0-6.4.4.x, 6.5.0-6.5.4.x, 8.3.0-8.3.0.x, 8.4.0-8.5.0.x, 8.6.0-8.6.0.x, or 8.7.0-8.7.1.xAffected if The installed version number is within any of the listed version ranges, indicating the device is vulnerable to the DoS attack
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Verify if the device has become unavailableAttempt to access the WebUI or CLI, or check if wireless clients can connect to SSIDs broadcast by the APAffected if The AP is unresponsive or wireless services are disrupted, confirming active exploitation
If the Aruba Instant AP is running a firmware version within the 6.4.x through 8.7.1.x range and is currently available, it is likely affected by this vulnerability and could be targeted for remote DoS.
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
From vendor dataApply the appropriate Aruba Instant firmware patches for the specific version branch in use, as released by Aruba. Prioritize updating 8.4.x versions which are affected across all versions.
- Consultation2.0 h
- Implementation4.0 h
- Testing3.0 h
- Review / QA1.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2021-34618 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2021-34618 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
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